Polish President Bronislaw Komorowski apologized to Russia "for the absolutely scandalous events near the Russian Embassy" in an interview with Radio ZET on Wednesday.
"This cannot be justified by anything, it is only possible to apologize for this," Komorowski said. "It is necessary to apologize on behalf of the Polish people, understanding that enormous damage to Poland's image is already a fact," he said.
"Many are interested in taking advantage of what has happened in order to enmity and to portray Poland as a Russophobic state," he said.
Participants in a march of Polish nationalists marking Independence Day on Monday threw firecrackers, Molotov cocktails and garbage onto the territory of the Russian Embassy in Warsaw and set fire to a security guard's booth near the entrance.
The Polish ambassador to Russia was summoned to the Foreign Ministry in Moscow.
At least 19 participants in the Warsaw riots were injured and 72 detained on Monday. Twelve policemen were also injured.
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